Files
yuclusters-mt5/backend/mt5_collector.py
T
rufinomec-afkandClaude Sonnet 4.6 54f269b0ce visual: redesign bottom panel, price axis cleanup and bid/ask indicator
- Bottom panel: dual bid/ask bars per cluster (red=sell, blue=buy) with white volume label inside and delta block below
- Price axis: labels every 10 rows (~7.5pts) instead of every row — cleaner, closer to original
- Price axis: bid/ask spread boxes with arrow indicator (shows on live market open)
- Price axis zoom: inverted so drag-up = zoom in, matching original behavior
- Current price line rendered last (always on top of all bars)
- Bar colors: corrected — ask (buy) = blue, bid (sell) = pink
- Backend: close_time field added to cluster JSON; bar_volume M1 annotation (triggers after replay)
- Backend: last_bid/ask tracked and injected into active cluster WS message

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-06 15:53:05 -03:00

281 lines
12 KiB
Python

import asyncio
import logging
import time
import sys
import os
from typing import Callable, Optional, Any
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))
import MetaTrader5 as mt5
from config import settings
from backend.aggregator import Aggregator, classify_tick
logging.basicConfig(level=logging.INFO, format="%(asctime)s [%(levelname)s] %(message)s")
logger = logging.getLogger("mt5_collector")
class MT5Collector:
def __init__(self, aggregator: Aggregator, on_update_callback: Callable[[dict, Optional[dict]], Any]):
self.aggregator = aggregator
self.on_update_callback = on_update_callback
self.symbol = settings.MT5_SYMBOL
self.running = False
self.connected = False
self.last_tick_time_msc = 0
self.seen_ticks_buffer = set()
self.last_mid_price = 0.0
self.last_is_buy = True
self.last_bid = 0.0
self.last_ask = 0.0
self._history_annotated = False
async def connect_mt5(self) -> bool:
"""
Attempts to initialize and login to the MetaTrader 5 terminal.
All MT5 calls are blocking, so they run in a thread executor.
"""
try:
# Try to connect to any running MT5 terminal without specifying path
initialized = await asyncio.to_thread(mt5.initialize)
if not initialized:
err = await asyncio.to_thread(mt5.last_error)
logger.error(f"MT5 initialize failed: {err}")
return False
if settings.MT5_LOGIN > 0:
login_success = await asyncio.to_thread(
mt5.login,
settings.MT5_LOGIN,
password=settings.MT5_PASSWORD,
server=settings.MT5_SERVER,
)
if not login_success:
err = await asyncio.to_thread(mt5.last_error)
logger.error(f"MT5 login failed: {err}")
await asyncio.to_thread(mt5.shutdown)
return False
symbol_info = await asyncio.to_thread(mt5.symbol_info, self.symbol)
if symbol_info is None:
logger.error(f"Symbol {self.symbol} not found.")
await asyncio.to_thread(mt5.shutdown)
return False
if not symbol_info.visible:
selected = await asyncio.to_thread(mt5.symbol_select, self.symbol, True)
if not selected:
logger.error(f"Failed to select/make visible symbol {self.symbol}.")
await asyncio.to_thread(mt5.shutdown)
return False
tick_size = symbol_info.trade_tick_size
if tick_size > 0:
self.aggregator.tick_size = tick_size
self.aggregator.active_cluster.tick_size = tick_size
logger.info(f"Set aggregator tick size to {tick_size}")
logger.info("Successfully connected to MetaTrader 5 and logged in.")
self.connected = True
return True
except Exception as e:
logger.error(f"Exception during MT5 connection: {e}")
return False
async def disconnect_mt5(self):
try:
await asyncio.to_thread(mt5.shutdown)
except Exception as e:
logger.error(f"Error during MT5 shutdown: {e}")
self.connected = False
async def start(self):
self.running = True
backoff = 1.0
while self.running:
if not self.connected:
success = await self.connect_mt5()
if not success:
logger.info(f"Reconnecting to MT5 in {backoff:.1f}s...")
await asyncio.sleep(backoff)
backoff = min(backoff * 2, 60.0)
continue
else:
backoff = 1.0
# Fetch from 48 hours ago so the chart isn't empty when started (covers weekends)
from datetime import datetime, timedelta
start_time_dt = datetime.now() - timedelta(hours=48)
ticks = await asyncio.to_thread(
mt5.copy_ticks_from, self.symbol, start_time_dt, 100000, mt5.COPY_TICKS_ALL
)
if ticks is not None and len(ticks) > 0:
self.last_tick_time_msc = ticks[0]['time_msc']
else:
self.last_tick_time_msc = int(start_time_dt.timestamp() * 1000)
# Polling loop
try:
from datetime import datetime
polling_dt = datetime.fromtimestamp(self.last_tick_time_msc / 1000.0)
ticks = await asyncio.to_thread(
mt5.copy_ticks_from,
self.symbol,
polling_dt,
1000,
mt5.COPY_TICKS_ALL,
)
if ticks is None:
err = await asyncio.to_thread(mt5.last_error)
logger.error(f"MT5 copy_ticks_from returned None: {err}")
self.connected = False
await self.disconnect_mt5()
continue
# Annotate history once replay is complete (first under-full batch = caught up)
if not self._history_annotated and len(ticks) < 1000:
self._history_annotated = True
await self.annotate_history_bar_volume()
if len(ticks) > 0:
logger.info(f"Fetched {len(ticks)} ticks starting at {ticks[0]['time_msc']}")
for tick in ticks:
msc = tick['time_msc']
if msc < self.last_tick_time_msc:
continue
tick_id = (msc, tick['bid'], tick['ask'], tick['last'], tick['volume_real'], tick['flags'])
if msc == self.last_tick_time_msc and tick_id in self.seen_ticks_buffer:
continue
if msc > self.last_tick_time_msc:
self.seen_ticks_buffer.clear()
self.last_tick_time_msc = msc
self.seen_ticks_buffer.add(tick_id)
flags = int(tick['flags'])
bid_price = float(tick['bid'])
ask_price = float(tick['ask'])
last_price = float(tick['last'])
if bid_price > 0: self.last_bid = bid_price
if ask_price > 0: self.last_ask = ask_price
mid_price = (bid_price + ask_price) / 2.0 if (bid_price > 0 and ask_price > 0) else 0.0
prev_mid = self.last_mid_price
# Update direction tracker from mid movement
if mid_price > 0:
if mid_price > self.last_mid_price:
self.last_is_buy = True
elif mid_price < self.last_mid_price:
self.last_is_buy = False
self.last_mid_price = mid_price
# Determine price (use mid as best proxy for CFD quote feed)
price = last_price if last_price > 0 else (mid_price if mid_price > 0 else (bid_price if bid_price > 0 else ask_price))
# Volume = price movement in tick-size units (how the YuCluster measures activity)
tick_sz = self.aggregator.tick_size if self.aggregator.tick_size > 0 else 0.01
if prev_mid > 0 and mid_price > 0:
price_steps = abs(mid_price - prev_mid) / tick_sz
volume = max(price_steps, 1.0)
else:
volume = 1.0
# Determine direction
if flags & 32:
is_buy = True
elif flags & 64:
is_buy = False
else:
is_buy = self.last_is_buy
active_json, closed_json = self.aggregator.process_tick(price, volume, is_buy, msc)
# Only broadcast during live trading (within 10s of now) to avoid
# flooding the WebSocket during historical replay
import time as _time
is_live = ((_time.time() * 1000) - msc) < 10_000
# Annotate live closed clusters with M1 bar volume
if is_live and closed_json and closed_json.get('open_time') and closed_json.get('close_time'):
bar_vol = await self.fetch_bar_volume(
closed_json['open_time'], closed_json['close_time']
)
closed_json['bar_volume'] = bar_vol
# Sync back to history buffer
for h in self.aggregator.history:
if h['cluster_id'] == closed_json['cluster_id']:
h['bar_volume'] = bar_vol
break
if is_live:
active_json['bid'] = self.last_bid
active_json['ask'] = self.last_ask
self.on_update_callback(active_json, closed_json)
await asyncio.sleep(0.1)
except Exception as e:
logger.error(f"Error during tick polling loop: {e}")
self.connected = False
await self.disconnect_mt5()
await asyncio.sleep(2.0)
async def fetch_bar_volume(self, open_time_msc: int, close_time_msc: int) -> int:
"""Sum tick_volume of M1 bars that overlap with the cluster's time range."""
from datetime import datetime
# Expand range by 1 minute on each side to capture partial bars
open_dt = datetime.fromtimestamp((open_time_msc - 60_000) / 1000.0)
close_dt = datetime.fromtimestamp((close_time_msc + 60_000) / 1000.0)
rates = await asyncio.to_thread(
mt5.copy_rates_range, self.symbol, mt5.TIMEFRAME_M1, open_dt, close_dt
)
if rates is None or len(rates) == 0:
return 0
total = 0
for r in rates:
bar_start_msc = int(r['time']) * 1000
bar_end_msc = bar_start_msc + 60_000
# Count bar if it overlaps with cluster period
if bar_start_msc < close_time_msc and bar_end_msc > open_time_msc:
total += int(r['tick_volume'])
return total
async def annotate_history_bar_volume(self):
"""Batch-fetch M1 bars and annotate all history clusters with bar_volume."""
if not self.aggregator.history:
return
first_open = self.aggregator.history[0].get('open_time') or 0
last_close = self.aggregator.history[-1].get('close_time') or self.aggregator.history[-1].get('open_time') or 0
if not first_open or not last_close:
return
from datetime import datetime
open_dt = datetime.fromtimestamp((first_open - 60_000) / 1000.0)
close_dt = datetime.fromtimestamp((last_close + 60_000) / 1000.0)
all_rates = await asyncio.to_thread(
mt5.copy_rates_range, self.symbol, mt5.TIMEFRAME_M1, open_dt, close_dt
)
if all_rates is None or len(all_rates) == 0:
logger.warning("annotate_history_bar_volume: no M1 bars returned")
return
for cluster in self.aggregator.history:
c_open = cluster.get('open_time') or 0
c_close = cluster.get('close_time') or c_open
total = 0
for r in all_rates:
bar_start_msc = int(r['time']) * 1000
bar_end_msc = bar_start_msc + 60_000
if bar_start_msc < c_close and bar_end_msc > c_open:
total += int(r['tick_volume'])
cluster['bar_volume'] = total
logger.info(f"annotate_history_bar_volume: annotated {len(self.aggregator.history)} clusters")
async def stop(self):
self.running = False
await self.disconnect_mt5()
logger.info("MT5 Collector stopped.")